1292d01fa8d7db871222286d0ffbf318c220614a27f60c083a4c998b08af2c3a

Analysis

max time kernel
134s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21/08/2024, 00:58

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General

Target
b18e89212c84bb5f1bdc16f78669aa51_JaffaCakes118.exe
Size 49KB
Sample240821-bbxmmssckb
SHA256 1292d01fa8d7db871222286d0ffbf318c220614a27f60c083a4c998b08af2c3a
MD5 b18e89212c84bb5f1bdc16f78669aa51
SHA1 197f02e1a43355399deeedd8badf9ff3395ad2c6
SHA512 f8de091c934a099eebc5af4f4b55e0a8768c6df630d46af05b3a4307b59ef415e50f3b4a0e0c344f201c8da7dd1032a9981bc8b032d0dd8ccb3a7d0d34df71d6
SSDEEP 1536:Kc9ansKYnAbA6qJrj0mNKgPx3yOvQ4LuhmpjcD:nan2CAvtwgp39Q4yhmpjcD
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

adware discovery stealer

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
4904	rundll32.exe

Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{A24B57F8-505D-4fc5-9960-740E304D1ABA}	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\b18e89212c84bb5f1bdc16f78669aa51_JaffaCakes118.dll	b18e89212c84bb5f1bdc16f78669aa51_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b18e89212c84bb5f1bdc16f78669aa51_JaffaCakes118.exe

Modifies registry class 4 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A24B57F8-505D-4fc5-9960-740E304D1ABA}\InprocServer32\ThreadingModel = "Both"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A24B57F8-505D-4fc5-9960-740E304D1ABA}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A24B57F8-505D-4fc5-9960-740E304D1ABA}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A24B57F8-505D-4fc5-9960-740E304D1ABA}\InprocServer32\ = "C:\\Windows\\SysWow64\\b18e89212c84bb5f1bdc16f78669aa51_JaffaCakes118.dll"	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 328 wrote to memory of 4904	328	b18e89212c84bb5f1bdc16f78669aa51_JaffaCakes118.exe	86
PID 328 wrote to memory of 4904	328	b18e89212c84bb5f1bdc16f78669aa51_JaffaCakes118.exe	86
PID 328 wrote to memory of 4904	328	b18e89212c84bb5f1bdc16f78669aa51_JaffaCakes118.exe	86

C:\Users\Admin\AppData\Local\Temp\b18e89212c84bb5f1bdc16f78669aa51_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b18e89212c84bb5f1bdc16f78669aa51_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:328
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe "C:\Windows\system32\b18e89212c84bb5f1bdc16f78669aa51_JaffaCakes118.dll",inject
  2⤵
  - Loads dropped DLL
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:4904

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

b18e89212c84bb5f1bdc16f78669aa51_JaffaCakes118.dll

Path C:\Windows\SysWOW64\b18e89212c84bb5f1bdc16f78669aa51_JaffaCakes118.dll
Size 37KB
SHA256 aa933696ce8ee1dc67bbbe06c2a1f6e8fcd2db4f33a69d5855e9b763d0c03251
MD5 6a7d1e23db7ba32ff3a0fe22e0ea20d9
SHA1 737e7e53ea3deec6d341d566b70da6f57eade35f
SHA512 ffa7419c4320ff190239603a46470e73b70764d9563eba9f5a3ee5b5ae44789df2c2c99e8794fba61f86e1242a81c02762e06f7341c55ab6d4a1d47f403ef95b
SSDEEP 768:aN835dE8nxnKzXLnmaVSyTEmrh7WveowqO+whTaEgOhlUr9:aexnK7Syzh7WveHmwRaEgLr9
MD5 SHA1 SHA512 SSDEEP

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memory/4904-3-0x0000000010000000-0x0000000010029000-memory.dmp

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